US Bridges

Conifr.Twn.Cntr.Dr over SH 285 Ml

Good

Jefferson County, Colorado · Conifer · Structure no. F-15-BY

Built
2005
20 years old
Condition
Good
inspected August 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
152 ft
2 main spans
Daily traffic
3,500
2024 count
Owner
State
State Highway Agency

About this bridge

Conifr.Twn.Cntr.Dr over SH 285 Ml is a prestressed concrete box beam or girders - multiple carrying Conifr.Twn.Cntr.Dr over SH 285 Ml in Jefferson County, Colorado. It was built in 2005, so it is 20 years old, younger than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,500 vehicles a day, roughly 1% of them trucks, projected to reach 4,025 by 2044. The structure is 152 ft (46.4 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesConifr.Twn.Cntr.Dr
CrossesSH 285 Ml
LocationConifer
RouteCity Street 0
Coordinates39.53068, -105.30584
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.2 US tons
Inventory rating41.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length152 ft (46.4 m)
Longest span73 ft (22.4 m)
Deck width40 ft (12.2 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,500 (2024)
Projected traffic4,025 by 2044
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Conifr.Twn.Cntr.Dr over SH 285 Ml built?

It was built in 2005, making it 20 years old in 2025.

What condition is Conifr.Twn.Cntr.Dr over SH 285 Ml in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2023.

How much traffic does Conifr.Twn.Cntr.Dr over SH 285 Ml carry?

About 3,500 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Conifr.Twn.Cntr.Dr over SH 285 Ml?

The structure is 152 ft (46.4 m) long with a longest span of 73 ft (22.4 m) and a deck 40 ft wide.

Who owns Conifr.Twn.Cntr.Dr over SH 285 Ml?

It is owned by the State Highway Agency.